Science represents all knowledge acquired through study, research or practice, based on the right principles. This word derives from the Latin scientia, whose meaning is "knowledge" or "to know." According to this concept, we can conclude that art is a type of science and a book about art can be considered a science book, as it involves the study, research and practice of principles.
I can certainly see how this is likely to be a science book. With the latest photographic technology scientists have photographed everything from star nebulas, space gases, to exoskeletons of creatures, flowers, sun flares, waves in motion, inside cells, etc. so yes absolutely!
The darker moths would be harder for the bird to see due to the amount of soot on the trees. The darker moth population would thrive and continue to grow, while the lighter colored moth population would decrease.